Which entity requires that all public water systems provide chemical analysis results?

The Florida Department of Environmental Protection (FDEP) is the correct answer because it is the state agency responsible for overseeing water quality and ensuring that public water systems comply with state and federal regulations. Under the Safe Drinking Water Act, all public water supplies are required to conduct regular testing and provide chemical analysis results to demonstrate that the water meets safety standards for contaminants. The FDEP enforces these regulations at the state level, managing compliance and protecting public health by overseeing the quality of drinking water.

In this context, while the EPA sets federal standards and regulations for water quality across the United States, and both the CDC and FDA have roles in public health and safety, it is the FDEP that specifically regulates public water systems within Florida, therefore making it the authoritative entity that mandates reporting of chemical analysis results for these systems.